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Add 'library/portable-simd/' from commit '1ce1c645cf27c4acdefe6ec8a11d1f0491954a99'
git-subtree-dir: library/portable-simd git-subtree-mainline: efd0483 git-subtree-split: 1ce1c64
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‎library/portable-simd/.github/ISSUE_TEMPLATE/blank_issue.md

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---
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name: Blank Issue
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about: Create a blank issue.
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---

‎library/portable-simd/.github/ISSUE_TEMPLATE/bug_report.md

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---
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name: Bug Report
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about: Create a bug report for Rust.
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labels: C-bug
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---
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<!--
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Thank you for filing a bug report! 🐛 Please provide a short summary of the bug,
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along with any information you feel relevant to replicating the bug.
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-->
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I tried this code:
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```rust
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<code>
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```
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I expected to see this happen: *explanation*
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Instead, this happened: *explanation*
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### Meta
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`rustc --version --verbose`:
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```
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<version>
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```
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`crate version in Cargo.toml`:
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```toml
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[dependencies]
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stdsimd =
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```
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<!-- If this specifies the repo at HEAD, please include the latest commit. -->
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<!--
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If a backtrace is available, please include a backtrace in the code block by
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setting `RUST_BACKTRACE=1` in your environment. e.g.
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`RUST_BACKTRACE=1 cargo build`.
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-->
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<details><summary>Backtrace</summary>
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<p>
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```
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<backtrace>
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```
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</p>
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</details>

‎library/portable-simd/.github/ISSUE_TEMPLATE/config.yml

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# This only controls whether a tiny, hard-to-find "open a blank issue" link appears at the end of
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# the template list.
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blank_issues_enabled: true
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contact_links:
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- name: Intrinsic Support
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url: https://github.com/rust-lang/stdarch/issues
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about: Please direct issues about Rust's support for vendor intrinsics to core::arch
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- name: Internal Compiler Error
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url: https://github.com/rust-lang/rust/issues
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about: Please report ICEs to the rustc repository

‎library/portable-simd/.github/ISSUE_TEMPLATE/feature_request.md

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---
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name: Feature Request
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about: Request an addition to the core::simd API
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labels: C-feature-request
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---
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<!--
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Hello!
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We are very interested in any feature requests you may have.
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However, please be aware that core::simd exists to address concerns with creating a portable SIMD API for Rust.
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Requests for extensions to compiler features, such as `target_feature`, binary versioning for SIMD APIs, or
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improving specific compilation issues in general should be discussed at https://internals.rust-lang.org/
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-->

‎library/portable-simd/.github/PULL_REQUEST_TEMPLATE.md

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Hello, welcome to `std::simd`!
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It seems this pull request template checklist was created while a lot of vector math ops were being implemented, and only really applies to ops. Feel free to delete everything here if it's not applicable, or ask for help if you're not sure what it means!
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For a given vector math operation on TxN, please add tests for interactions with:
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- [ ] `T::MAX`
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- [ ] `T::MIN`
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- [ ] -1
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- [ ] 1
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- [ ] 0
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For a given vector math operation on TxN where T is a float, please add tests for test interactions with:
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- [ ] a really large number, larger than the mantissa
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- [ ] a really small "subnormal" number
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- [ ] NaN
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- [ ] Infinity
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- [ ] Negative Infinity

‎library/portable-simd/.github/workflows/ci.yml

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name: CI
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on:
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pull_request:
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push:
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branches:
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- master
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env:
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CARGO_NET_RETRY: 10
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RUSTUP_MAX_RETRIES: 10
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jobs:
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rustfmt:
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name: "rustfmt"
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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rustup component add rustfmt
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- name: Run rustfmt
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run: cargo fmt --all -- --check
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clippy:
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name: "clippy on ${{ matrix.target }}"
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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matrix:
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target:
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# We shouldn't really have any OS-specific code, so think of this as a list of architectures
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- x86_64-unknown-linux-gnu
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- i686-unknown-linux-gnu
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- i586-unknown-linux-gnu
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- aarch64-unknown-linux-gnu
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- armv7-unknown-linux-gnueabihf
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- mips-unknown-linux-gnu
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- mips64-unknown-linux-gnuabi64
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- powerpc-unknown-linux-gnu
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- powerpc64-unknown-linux-gnu
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- riscv64gc-unknown-linux-gnu
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- s390x-unknown-linux-gnu
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- sparc64-unknown-linux-gnu
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- wasm32-unknown-unknown
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steps:
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- uses: actions/checkout@v2
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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rustup target add ${{ matrix.target }}
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rustup component add clippy
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- name: Run Clippy
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run: cargo clippy --all-targets --target ${{ matrix.target }}
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x86-tests:
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name: "${{ matrix.target_feature }} on ${{ matrix.target }}"
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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target: [x86_64-pc-windows-msvc, i686-pc-windows-msvc, i586-pc-windows-msvc, x86_64-unknown-linux-gnu, x86_64-apple-darwin]
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# `default` means we use the default target config for the target,
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# `native` means we run with `-Ctarget-cpu=native`, and anything else is
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# an arg to `-Ctarget-feature`
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target_feature: [default, native, +sse3, +ssse3, +sse4.1, +sse4.2, +avx, +avx2]
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exclude:
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# The macos runners seem to only reliably support up to `avx`.
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- { target: x86_64-apple-darwin, target_feature: +avx2 }
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# These features are statically known to be present for all 64 bit
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# macs, and thus are covered by the `default` test
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- { target: x86_64-apple-darwin, target_feature: +sse3 }
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- { target: x86_64-apple-darwin, target_feature: +ssse3 }
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# -Ctarget-cpu=native sounds like bad-news if target != host
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- { target: i686-pc-windows-msvc, target_feature: native }
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- { target: i586-pc-windows-msvc, target_feature: native }
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include:
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# Populate the `matrix.os` field
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- { target: x86_64-apple-darwin, os: macos-latest }
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- { target: x86_64-unknown-linux-gnu, os: ubuntu-latest }
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- { target: x86_64-pc-windows-msvc, os: windows-latest }
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- { target: i686-pc-windows-msvc, os: windows-latest }
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- { target: i586-pc-windows-msvc, os: windows-latest }
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# These are globally available on all the other targets.
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- { target: i586-pc-windows-msvc, target_feature: +sse, os: windows-latest }
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- { target: i586-pc-windows-msvc, target_feature: +sse2, os: windows-latest }
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# Annoyingly, the x86_64-unknown-linux-gnu runner *almost* always has
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# avx512vl, but occasionally doesn't. Maybe one day we can enable it.
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steps:
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- uses: actions/checkout@v2
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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rustup target add ${{ matrix.target }}
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- name: Configure RUSTFLAGS
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shell: bash
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run: |
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case "${{ matrix.target_feature }}" in
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default)
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echo "RUSTFLAGS=-Dwarnings" >> $GITHUB_ENV;;
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native)
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echo "RUSTFLAGS=-Dwarnings -Ctarget-cpu=native" >> $GITHUB_ENV
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;;
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*)
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echo "RUSTFLAGS=-Dwarnings -Ctarget-feature=${{ matrix.target_feature }}" >> $GITHUB_ENV
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;;
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esac
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# Super useful for debugging why a SIGILL occurred.
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- name: Dump target configuration and support
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run: |
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rustc -Vv
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echo "Caveat: not all target features are expected to be logged"
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echo "## Requested target configuration (RUSTFLAGS=$RUSTFLAGS)"
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rustc --print=cfg --target=${{ matrix.target }} $RUSTFLAGS
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echo "## Supported target configuration for --target=${{ matrix.target }}"
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rustc --print=cfg --target=${{ matrix.target }} -Ctarget-cpu=native
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echo "## Natively supported target configuration"
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rustc --print=cfg -Ctarget-cpu=native
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- name: Test (debug)
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run: cargo test --verbose --target=${{ matrix.target }}
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- name: Test (release)
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run: cargo test --verbose --target=${{ matrix.target }} --release
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wasm-tests:
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name: "wasm (firefox, ${{ matrix.name }})"
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runs-on: ubuntu-latest
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strategy:
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matrix:
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include:
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- { name: default, RUSTFLAGS: "" }
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- { name: simd128, RUSTFLAGS: "-C target-feature=+simd128" }
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steps:
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- uses: actions/checkout@v2
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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- name: Install wasm-pack
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run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
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- name: Test (debug)
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run: wasm-pack test --firefox --headless crates/core_simd
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env:
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RUSTFLAGS: ${{ matrix.rustflags }}
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- name: Test (release)
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run: wasm-pack test --firefox --headless crates/core_simd --release
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env:
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RUSTFLAGS: ${{ matrix.rustflags }}
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cross-tests:
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name: "${{ matrix.target }} (via cross)"
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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# TODO: Sadly, we cant configure target-feature in a meaningful way
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# because `cross` doesn't tell qemu to enable any non-default cpu
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# features, nor does it give us a way to do so.
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#
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# Ultimately, we'd like to do something like [rust-lang/stdarch][stdarch].
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# This is a lot more complex... but in practice it's likely that we can just
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# snarf the docker config from around [here][1000-dockerfiles].
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#
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# [stdarch]: https://github.com/rust-lang/stdarch/blob/a5db4eaf/.github/workflows/main.yml#L67
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# [1000-dockerfiles]: https://github.com/rust-lang/stdarch/tree/a5db4eaf/ci/docker
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matrix:
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target:
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- i586-unknown-linux-gnu
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# 32-bit arm has a few idiosyncracies like having subnormal flushing
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# to zero on by default. Ideally we'd set
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- armv7-unknown-linux-gnueabihf
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- aarch64-unknown-linux-gnu
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# Note: The issue above means neither of these mips targets will use
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# MSA (mips simd) but MIPS uses a nonstandard binary representation
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# for NaNs which makes it worth testing on despite that.
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- mips-unknown-linux-gnu
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- mips64-unknown-linux-gnuabi64
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- riscv64gc-unknown-linux-gnu
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# TODO this test works, but it appears to time out
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# - powerpc-unknown-linux-gnu
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# TODO this test is broken, but it appears to be a problem with QEMU, not us.
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# - powerpc64le-unknown-linux-gnu
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# TODO enable this once a new version of cross is released
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# - powerpc64-unknown-linux-gnu
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steps:
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- uses: actions/checkout@v2
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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rustup target add ${{ matrix.target }}
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rustup component add rust-src
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- name: Install Cross
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# Equivalent to `cargo install cross`, but downloading a prebuilt
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# binary. Ideally we wouldn't hardcode a version, but the version number
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# being part of the tarball means we can't just use the download/latest
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# URL :(
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run: |
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CROSS_URL=https://github.com/rust-embedded/cross/releases/download/v0.2.1/cross-v0.2.1-x86_64-unknown-linux-gnu.tar.gz
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mkdir -p "$HOME/.bin"
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curl -sfSL --retry-delay 10 --retry 5 "${CROSS_URL}" | tar zxf - -C "$HOME/.bin"
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echo "$HOME/.bin" >> $GITHUB_PATH
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- name: Test (debug)
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run: cross test --verbose --target=${{ matrix.target }}
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- name: Test (release)
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run: cross test --verbose --target=${{ matrix.target }} --release
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features:
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name: "Check cargo features (${{ matrix.simd }} × ${{ matrix.features }})"
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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matrix:
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simd:
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- ""
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- "avx512"
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features:
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- ""
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- "--features std"
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- "--features generic_const_exprs"
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- "--features std --features generic_const_exprs"
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steps:
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- uses: actions/checkout@v2
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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- name: Detect AVX512
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run: echo "CPU_FEATURE=$(lscpu | grep -o avx512[a-z]* | sed s/avx/+avx/ | tr '\n' ',' )" >> $GITHUB_ENV
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- name: Check build
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if: ${{ matrix.simd == '' }}
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run: RUSTFLAGS="-Dwarnings" cargo check --all-targets --no-default-features ${{ matrix.features }}
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- name: Check AVX
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if: ${{ matrix.simd == 'avx512' && contains(env.CPU_FEATURE, 'avx512') }}
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run: |
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echo "Found AVX features: $CPU_FEATURE"
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RUSTFLAGS="-Dwarnings -Ctarget-feature=$CPU_FEATURE" cargo check --all-targets --no-default-features ${{ matrix.features }}

‎library/portable-simd/.github/workflows/doc.yml

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name: Documentation
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on:
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push:
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branches:
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- master
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jobs:
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release:
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name: Deploy Documentation
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runs-on: ubuntu-latest
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steps:
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- name: Checkout Repository
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uses: actions/checkout@v1
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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- name: Build Documentation
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run: cargo doc --no-deps
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- name: Deploy Documentation
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uses: peaceiris/actions-gh-pages@v3
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with:
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github_token: ${{ secrets.GITHUB_TOKEN }}
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publish_branch: gh-pages
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publish_dir: ./target/doc

‎library/portable-simd/.gitignore

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/target
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Cargo.lock

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